Composite type mouldproof agent and its prepn. method

A kind of antifungal agent and composite technology, which is applied in the fields of botanical equipment and methods, biocides, animal repellents, etc., to achieve excellent antifungal properties, strong antifungal and bacteriostatic properties, and improved antifungal properties.

Inactive Publication Date: 2005-11-09
李翊玮
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Problems solved by technology

[0005] Chinese invention patent No. ZL96110779.0 discloses a fungicide containing 4-hydroxy-3-methoxybenzaldehyde, but the fungicide described in the patent is limited to ethanol, n-butanol, propionic acid, sorbic acid, Benzoic acid, formic acid, acetic acid and other organic acids and their salts are the main components

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  • Composite type mouldproof agent and its prepn. method

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Embodiment Construction

[0021] Enumerate the embodiment of the present invention below:

[0022] Take a certain amount of monomethyl fumarate or dimethyl fumarate and dissolve it in an ethanol solution at a temperature of 70-77°C in a weight ratio of 1:3 to make monomethyl fumarate or fumaric acid The ethanol solution of dimethyl ester is placed in a stirred container that can be airtight and has good heat transfer performance; 4-hydroxy-3-methoxybenzaldehyde is dissolved in ethanol at a temperature of 70-77°C in a weight ratio of 1:3 In the solution, make the ethanol solution of 4-hydroxyl-3-methoxybenzaldehyde, then add the ethanol solution of 4-hydroxyl-3-methoxybenzaldehyde (vanillin) in the ratio of 0.5~10% by weight, Then close the container and stir while heating. The temperature of the container is controlled between 70-77°C, and the stirring speed is 60-80 rpm. In the drying process, the temperature is cooled to room temperature, and the mixing ratio between the two components is shown in T...

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Abstract

A composite anti-mildew agent especially suitable for storage of tobacco leaf is prepared from monomethyl (or dimethyl) fumarate and vanillin through proportional mixing. Its advantages are low irritation to human skin and mucosa and high effect.

Description

technical field [0001] The invention relates to a class of solid antifungal agents, in particular to a composite antifungal agent containing 4-hydroxy-3-methoxybenzaldehyde and a preparation method thereof. Background technique [0002] In the 1980s, dimethyl fumarate (DMF), which was produced and widely used in my country, played an active role in food, feed and tobacco mold prevention. It has the advantages of wide application range of PH, low toxicity and high efficiency, convenient use and unique sublimation property. Can be sterilized by gas phase, no residue, and low price. [0003] Recent studies have found that monomethyl fumarate (MMF) not only has the advantages of dimethyl fumarate, but is slightly less irritating to humans than DMF. It can be mixed with DMF. However, whether it is dimethyl fumarate or monomethyl fumarate, they all have a common disadvantage when used, that is, they have different degrees of irritation to human skin and mucous membranes. Espec...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N37/06
Inventor 李翊玮
Owner 李翊玮
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